The Dictionary.com app is our pick for best free reference app; it lets you carry around a nearly infinite supply of word definitions with you at all times!

The Dictionary.com app works precisely like the website, of the same name, but has a couple of great features that add to its desirability.

Once you download the app, it doesn’t require the internet, in order to look up word meanings. Along with the built in Thesaurus functionality, this grants you permanent access to “nearly 1,000,000 words and definitions and 90,000 synonyms”, which is perfect for helping you out while you’re creative writing, or reading.

In addition, the Dictionary.com app’s popular “Word of the Day” function, allows you to stay educated and actually learn something every day.